Finite-temperature renormalization of Standard Model coupled with gravity, and its implications for cosmology

IF 3 3区 物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY
I.Y. Park
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引用次数: 0

Abstract

Finite-temperature one-loop renormalization of the Standard Model, coupled with dynamic metric, is conducted in this study. The entire analysis is coherently carried out by using the refined background field method, applied in the spirit of the Coleman–Weinberg technique. The general form of the propagator, introduced in our previous work to facilitate Feynman diagram computation in a general curved background, proves useful in the presence of time-dependent temperature. Its utilization allows for the renormalization analysis of a FLRW background to essentially reduce to that of a constant finite-T flat spacetime. For infrared physics, the actual curved background should be considered. The implications of our findings for cosmology, particularly the cosmological constant problem and Hubble tension, are discussed.
与重力耦合的标准模型的有限温度重整化及其对宇宙学的影响
本文对标准模型进行了有限温度单回路重整化,并结合了动态度量。整个分析是用精细化的背景场方法连贯地进行的,采用了科尔曼-温伯格技术的精神。传播子的一般形式,在我们之前的工作中介绍,以方便在一般弯曲背景下的费曼图计算,证明在存在时间相关温度的情况下是有用的。它的使用允许对FLRW背景进行重整化分析,本质上减少到一个常数有限t平坦时空。对于红外物理,应该考虑实际的弯曲背景。讨论了我们的发现对宇宙学的影响,特别是宇宙学常数问题和哈勃张力。
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来源期刊
Annals of Physics
Annals of Physics 物理-物理:综合
CiteScore
5.30
自引率
3.30%
发文量
211
审稿时长
47 days
期刊介绍: Annals of Physics presents original work in all areas of basic theoretic physics research. Ideas are developed and fully explored, and thorough treatment is given to first principles and ultimate applications. Annals of Physics emphasizes clarity and intelligibility in the articles it publishes, thus making them as accessible as possible. Readers familiar with recent developments in the field are provided with sufficient detail and background to follow the arguments and understand their significance. The Editors of the journal cover all fields of theoretical physics. Articles published in the journal are typically longer than 20 pages.
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